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  2. Computer programming in the punched card era - Wikipedia

    en.wikipedia.org/wiki/Computer_programming_in...

    A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching holes in the card ...

  3. Punched card - Wikipedia

    en.wikipedia.org/wiki/Punched_card

    Punched card. A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[1] or punched-card[2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines. Punched cards were widely used in the 20th ...

  4. Punched card input/output - Wikipedia

    en.wikipedia.org/wiki/Punched_card_input/output

    Punched card input/output. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with ...

  5. 20+ Free Printable Valentine’s Cards for Your Sweethearts ...

    www.aol.com/20-free-printable-valentine-cards...

    7. Candy Coated Valentine. Greetings Island. This candy-themed free printable card from Greetings Island would be a perfect complement to a box of Valentine’s chocolates for your sweetheart. The ...

  6. IBM 519 - Wikipedia

    en.wikipedia.org/wiki/IBM_519

    The IBM 519 Document-Originating Machine, introduced in 1946, was the last in a series of unit record machines designed for automated preparation of punched cards. Others in the series included the IBM 513 & IBM 514 Reproducing Punch. The 519, which was "state of the art for the time", [1] could: The reproducing, gangpunching, summary punching ...

  7. IBM 1442 - Wikipedia

    en.wikipedia.org/wiki/IBM_1442

    IBM 1442[ 1][ 2] is a combination IBM card reader and card punch. It reads and punches 80-column IBM-format punched cards [ 3] and is used on the IBM 1440, the IBM 1130, the IBM 1800 [ 4] and System/360 [ 5] and is an option on the IBM System/3. [ 6]

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